public override bool FileExists(string VirtualPath)
{
var db = new FileSystem.FileStoreDb(this.connectionString);
var file = db.FileStoreFiles.FirstOrDefault(x => x.FullPath.ToLower() == VirtualPath.VirtualPathToDbPath() && x.FileStoreDirectory.BlogID == Blog.CurrentInstance.Id) == null;
db.Dispose();
return file;
}